Most of the solid state 2 to 30 MHz ones are actually quite good
as far as harmonics are concerned.
As long as they are not over driven.......
As a precaution it would still be wise to run the output thru a Pi L
type antenna tuner and a low pass filter to clean up any possible
harmonics - a lot of harmonic content can be even generated in
the QRP rig and is not a problem until it is amplified.
Least thats what the spectrum analyzer says for a Palomar TX-75
and a number of others that I have worked on.
I have seen a lot worse on the air from both commercial and home brew amps
being improperly tuned, - over driven, -and poorly designed etc.
73
de
ve6nap@oanet.com
----------
> From: William Fuqua <Wlfuqu00@pop.uky.edu>
> To: amps@contesting.com
> Subject: [AMPS] CB amps on ham bands?
To: <amps@contesting.com>
> Date: Friday, January 21, 2000 7:35 AM
>
>
> I am seeing a number of "CB" solid state amplifiers being sold on ham
> reflectors now days.
> These are advertised to be useful from 2 to 30 MHz. One example is an ad
> for a Palomar #225 that I saw.
> However, many hams do not realize that these do not have output harmonic
> filters incorporated in them
> for the various ham bands. I expect that they produce serious harmonic
> output if they are used on the
> lower ham bands if used with QRP rigs. I suspect that the ads are
really
> targeting CB'ers.
>
> 73
> Bill wa4lav
>
>
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